Hale SMR - Manual (Page 93)

Stainless Max Series Pumps 6-15
Maintenance and Repair
4. Remove the silicon carbide mating ring, fitted in the rear side of
the impeller. A small screwdriver should be inserted between the
ring and its rubber cap. The ring can then be carefully pried free.
See Figure 6-9: “Mechanical Seal Assembly” on page 6-14.
5. Examine the carbon face and mating ring matching face. If either
is scored you must replace the mechanical seal assembly. Order
Hale p/n: 60022/01.
Installation
See Figure 6-9: “Mechanical Seal Assembly” on page 6-14.
1. See CAUTION! warning on preceding page (6-14).
2. Ensure that the pump body and impeller bores and all mating
surfaces of the mechanical seal assembly are absolutely clean
throughout the entire installation process. Solid faces must be
cleaned with appropriate degreasing cleaner and soft rags.
3. Apply a generous coating of Pac-Ease Rubber Lubricant Emul-
sion (or equal) to the O-ring on the seal head assembly and the
pump shaft and seal areas.
WARNING!
USE ONLY PAC-EASE RUBBER LUBRICANT EMULSION (OR EQUAL)
ON THE RUBBER MECHANICAL SEAL PARTS TO EASE INSTALLA-
TION. USING ANY OTHER LUBRICANT CAN DAMAGE THE SEAL AND
SEAT.
4. Without touching the carbon seal, slide the wave washer and the
seal head onto the pump shaft.
Seat the seal head against the pump housing making sure the
cutouts in the seal head align with the threaded studs.
5. Install the washer to the studs, followed by the nyloc-nuts – hand
tightened only. See Figure 6-9: “Mechanical Seal Assembly” on
page 6-14.
Continue tightening all the nyloc-nuts evenly, half-a-turn at a
time, until the seal head is pulled squarely into the pump body.
Ensure the nuts are fully secured.
6. Verify that the carbon face of the seal head is clean and free from
grease. Apply clean water to the carbon face to ensure
cleanliness.